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| MP20142 Datasheet, PDF (1/13 Pages) Monolithic Power Systems – Dual Channel, 200mA Linear Regulator With Programmable Output Voltage and Output Discharge | |||
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The Future of Analog IC Technology
MP20142
Dual Channel, 200mA Linear
Regulator With Programmable
Output Voltage and Output Discharge
DESCRIPTION
The MP20142 is a dual-channel, low noise, low
dropout and high PSRR linear regulator with
programmable output voltage. The output
voltage of MP20142 ranges from 1.2V to 3.3V
in 100mV increments and 2.5% accuracy by
operating from a +2.5V to +5.5V input. The
different output voltage options can be
programmed by setting the voltage of P1 and
P2 to VDD, GND or floating. There are 9
different voltage settings in one chip. Each
output channel can supply up to 200mA of load
current.
The MP20142 uses two internal P-channel
MOSFETs as the pass devices, which
consumes 150µA supply current when both
channels are enabled at no load condition. The
EN1 and EN2 pins control each output
respectively. When both channels shutdown
simultaneously, the chip turns off and
consumes nearly zero operation current which
is suitable for battery-power devices. The
MP20142 also features current limiting, output
discharge and over temperature protection.
It is available in a TQFN8 (2mmÃ2mm) package.
FEATURES
⢠Programmable Output Voltage
⢠Up to 200mA Output Current (Each LDO)
⢠60mV Dropout at 100mA Load
⢠Dual Shutdown Pins Control Each Output
⢠75dB PSRR at 1kHz
⢠7µVRMS Low Noise Outputs
⢠Current Limiting and Thermal Protection
⢠Short Circuit Protection
⢠Two LDOs in TQFN8 (2mmÃ2mm) Package
⢠Output Load Discharge when Disabled
APPLICATIONS
⢠Cellular Phones
⢠Battery-powered Equipment
⢠Laptop, Notebook, and Palmtop Computers
⢠Hand-held Equipment
⢠Wireless LAN
âMPSâ and âThe Future of Analog IC Technologyâ are Registered Trademarks
of Monolithic Power Systems, Inc.
TYPICAL APPLICATION
MP20142 Rev.0.9
www.MonolithicPower.com
1
7/12/2010
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2010 MPS. All Rights Reserved.
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